tree 5b1be93613e7b907f840bdcd6d2f1927cb8f0d4c
parent 417ecf40bad5b6e753bb9f5cd4dff45cd90c2f28
author Paolo Bonzini <pbonzini@redhat.com> 1592316137 -0400
committer Thomas Huth <thuth@redhat.com> 1592331315 +0200

x86: disable SSE on 32-bit hosts

On 64-bit hosts we are disabling SSE and SSE2.  Depending on the
compiler however it may use movq instructions for 64-bit transfers
even when targeting 32-bit processors; when CR4.OSFXSR is not set,
this results in an undefined opcode exception, so tell the compiler
to avoid those instructions on 32-bit hosts as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200616140217.104362-1-pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>